A movable ventilation dust-settling device for expressway tunnel construction

Abstract

The utility model provides a movable ventilation dust fall device for highway tunnel construction relates to ventilation dust fall device technical field, including base, and the base one end is provided with the storage groove, and the inside slide of storage groove is installed with the extension plate, and the extension plate outer wall is fixedly installed with the counterweight, and the extension plate one end is provided with the thread groove, and the inside thread groove is connected with first threaded rod, and the inside control groove of base is provided with, and first threaded rod one end enters control groove and is fixedly installed with worm wheel, and the inside side wall of control groove is rotatably installed with worm gear. In the utility model, when using, staff rotates the turntable, and the turntable drives worm gear to rotate, because worm wheel and worm gear meshed connection, therefore worm wheel rotates, and then drives first threaded rod to rotate, therefore extension plate moves along the inside wall of storage groove, and the counterweight is removed, and the distance of adjusting counterweight removal is used to adjust the gravity center of device, prevents device to collapse.

Description

Technical Field

[0001] This utility model relates to the technical field of ventilation and dust suppression devices, and in particular to a mobile ventilation and dust suppression device for highway tunnel construction. Background Technology

[0002] Highway tunnels are underground passages built to overcome terrain obstacles, facilitating vehicle traffic. They are typically constructed in mountainous areas, near water, or in urban areas, significantly shortening travel distances and improving transportation efficiency. As vital arteries of modern transportation, highway tunnels have evolved from simple passageways into comprehensive transportation hubs integrating safety, intelligence, and environmental friendliness. As of 2023, China had built nearly 27,000 highway tunnels, totaling over 26,000 kilometers, forming the world's largest tunnel network. China has achieved world-leading levels in tunnel construction technology and operation management.

[0003] In the existing technology, mobile ventilation and dust suppression devices are designed specifically for highway tunnel construction to quickly handle dust and harmful gases generated by drilling, blasting, and tunneling operations, improve the construction environment, and protect the health and safety of personnel. However, when in use, because the front end of the device is usually equipped with dust suppression devices and ventilation ducts, the device's center of gravity is forward, which may cause the device to tip over. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the prior art, when the device is in use, the device may tip over because the front end of the device is usually equipped with dust suppression devices and ventilation ducts, so the center of gravity of the device is forward. Therefore, this invention proposes a mobile ventilation and dust suppression device for highway tunnel construction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mobile ventilation and dust suppression device for highway tunnel construction, comprising a base, a storage groove at one end of the base, an extension plate slidably installed inside the storage groove, a counterweight fixedly installed on the outer wall of the extension plate, a threaded groove at one end of the extension plate, a first threaded rod threadedly connected inside the threaded groove, a control groove at the inside of the base, one end of the first threaded rod entering the control groove and fixedly installed with a worm gear, a worm rotatably installed on the inner side wall of the control groove, the worm meshing with the worm gear, and one end of the worm penetrating the base and fixedly installed with a turntable.

[0006] Preferably, a support base is fixedly installed on the top of the base, a ventilation duct is fixedly installed on the inner wall of the support base, and a fan is fixedly installed on the inner wall of the ventilation duct.

[0007] Preferably, two mounting plates are symmetrically installed on the top of the ventilation duct. The outer wall of the mounting plate has a slot, the inner wall of the slot has a limit groove, the inner wall of the limit groove has a threaded hole, and a second threaded rod is threadedly connected inside the threaded hole. A handle is fixedly installed on the top of the second threaded rod, and a locking block is movably connected to the bottom of the second threaded rod.

[0008] Preferably, a plug plate is slidably installed inside the slot, a slot is provided at the bottom of the plug plate, a connecting plate is fixedly installed on the outer wall of the plug plate, and a dustproof net is fixedly installed at the bottom of the connecting plate.

[0009] Preferably, a fixed pipe is fixedly installed at the bottom of the ventilation duct, a water tank is fixedly installed at the top of the base, a water pump is fixedly installed at the top of the water tank, a connecting pipe is fixedly connected between the output end of the water pump and the fixed pipe, and multiple evenly distributed atomizing nozzles are fixedly connected at the bottom of the fixed pipe.

[0010] Preferably, a controller is provided on the outer wall of the support base.

[0011] Preferably, the base is provided with rollers at all four corners of its bottom, and a handrail is fixedly installed on the top of the base.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when in use, the operator rotates the turntable, which drives the worm gear to rotate. Since the worm wheel is meshed with the worm, the worm wheel rotates, which in turn drives the first threaded rod to rotate. As a result, the extension plate moves along the inner wall of the storage slot, pushing the counterweight to move. By adjusting the distance the counterweight moves, the center of gravity of the device is adjusted to prevent the device from collapsing.

[0014] 2. In this utility model, when the fan is working, the dustproof net can prevent external dust from entering the ventilation duct and contacting the fan. When the dustproof net needs to be cleaned, the operator rotates the handle, which drives the second threaded rod to rotate, causing the locking block to move along the inner wall of the limiting groove until it leaves the groove. At this time, the operator can pull out the insert plate to clean the dustproof net, then reset the insert plate, rotate the handle in the opposite direction, and the locking block enters the groove. This completes the installation and improves the cleaning efficiency. Attached Figure Description

[0015] Figure 1 This utility model presents an overall perspective view of a mobile ventilation and dust suppression device for highway tunnel construction.

[0016] Figure 2 This utility model provides a sectional view of the base of a movable ventilation and dust suppression device for highway tunnel construction.

[0017] Figure 3 This utility model provides a perspective view of the internal structure of the ventilation cylinder of a portable ventilation and dust suppression device for highway tunnel construction.

[0018] Figure 4 This utility model provides a cross-sectional view of the mounting plate of a movable ventilation and dust suppression device for highway tunnel construction.

[0019] Legend: 1. Base; 2. Roller; 3. Handrail; 4. Support base; 5. Controller; 6. Ventilation duct; 7. Water tank; 8. Water pump; 9. Connecting pipe; 10. Fixing pipe; 11. Atomizing nozzle; 12. Control slot; 13. Worm gear; 14. Turntable; 15. Storage slot; 16. Extension plate; 17. Threaded groove; 18. First threaded rod; 19. Worm gear; 20. Counterweight; 21. Fan; 22. Dustproof net; 23. Mounting plate; 24. Connecting plate; 25. Insert plate; 26. Slot; 27. Slot; 28. Limiting slot; 29. ​​Threaded hole; 30. Second threaded rod; 31. Handle; 32. Locking block. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, as Figures 1-4 As shown, this utility model provides a mobile ventilation and dust suppression device for highway tunnel construction, including a base 1. One end of the base 1 has a storage slot 15. An extension plate 16 is slidably installed inside the storage slot 15. A counterweight block 20 is fixedly installed on the outer wall of the extension plate 16. One end of the extension plate 16 has a threaded groove 17. A first threaded rod 18 is threadedly connected inside the threaded groove 17. A control slot 12 is opened inside the base 1. One end of the first threaded rod 18 enters the control slot 12 and is fixedly installed with a worm gear 19. A worm 13 is rotatably installed on the inner side wall of the control slot 12. The worm 13 is meshed with the worm gear 19. One end of the worm 13 passes through the base 1 and is fixedly installed with a turntable 14.

[0023] The effect achieved by the entire embodiment 1 is that, when in use, the operator rotates the turntable 14, which drives the worm gear 13 to rotate. Since the worm wheel 19 is meshed with the worm gear 13, the worm wheel 19 rotates, which in turn drives the first threaded rod 18 to rotate. Therefore, the extension plate 16 moves along the inner wall of the storage groove 15, pushing the counterweight 20 to move. By adjusting the distance the counterweight 20 moves, the center of gravity of the device is adjusted to prevent the device from collapsing.

[0024] Example 2, as Figures 1-4 As shown, a support base 4 is fixedly installed on the top of the base 1, a ventilation duct 6 is fixedly installed on the inner wall of the support base 4, and a fan 21 is fixedly installed on the inner wall of the ventilation duct 6.

[0025] Furthermore, two mounting plates 23 are symmetrically installed on the top of the ventilation duct 6. The outer wall of the mounting plate 23 has a slot 27, the inner wall of the slot 27 has a limiting groove 28, the inner wall of the limiting groove 28 has a threaded hole 29, the threaded hole 29 is threadedly connected to a second threaded rod 30, the top of the second threaded rod 30 is fixedly installed with a handle 31, and the bottom of the second threaded rod 30 is movably connected with a locking block 32.

[0026] Furthermore, a plug plate 25 is slidably installed inside the slot 27, a slot 26 is opened at the bottom of the plug plate 25, a connecting plate 24 is fixedly installed on the outer wall of the plug plate 25, and a dustproof net 22 is fixedly installed at the bottom of the connecting plate 24.

[0027] Furthermore, a fixed pipe 10 is fixedly installed at the bottom of the ventilation duct 6, a water tank 7 is fixedly installed at the top of the base 1, a water pump 8 is fixedly installed at the top of the water tank 7, a connecting pipe 9 is fixedly connected between the output end of the water pump 8 and the fixed pipe 10, and multiple evenly distributed atomizing nozzles 11 are fixedly connected at the bottom of the fixed pipe 10.

[0028] Furthermore, a controller 5 is provided on the outer wall of the support base 4.

[0029] Furthermore, the base 1 is equipped with rollers 2 at all four corners of its bottom, and a handrail 3 is fixedly installed on the top of the base 1 to facilitate the movement of the device by staff.

[0030] The effect achieved by the entire embodiment 2 is that when the fan 21 is working, the dustproof net 22 can prevent external dust from entering the ventilation duct 6 and contacting the fan 21. When the dustproof net 22 needs to be cleaned, the operator rotates the handle 31, which drives the second threaded rod 30 to rotate, causing the locking block 32 to move along the inner wall of the limiting groove 28 until it leaves the slot 26. At this time, the operator can pull out the insert plate 25 to clean the dustproof net 22, and then reset the insert plate 25, rotate the handle 31 in the opposite direction, and the locking block 32 enters the slot 26. This completes the installation and improves the cleaning efficiency.

[0031] Working principle: During ventilation, the staff starts the fan 21 to introduce clean air into the tunnel. At the same time, the staff starts the water pump 8, which draws clean water from the water tank 7 into the connecting pipe 9, then into the fixed pipe 10, and finally sprays it out from the atomizing nozzle 11 to reduce the dust concentration inside the tunnel. Meanwhile, the staff rotates the turntable 14, which drives the worm gear 13 to rotate. Since the worm wheel 19 is meshed with the worm gear 13, the worm wheel 19 rotates, which in turn drives the first threaded rod 18 to rotate. Therefore, the extension plate 16 moves along the inner wall of the storage slot 15, pushing the counterweight 20 to move. By adjusting the distance the counterweight 20 moves, the center of gravity of the device is adjusted to prevent the device from collapsing. When the fan 21 is working, the dustproof net 22 can prevent external dust from entering the ventilation duct 6 and coming into contact with the fan 21. When the dustproof net 22 needs to be cleaned, the operator turns the handle 31, which drives the second threaded rod 30 to rotate, causing the locking block 32 to move along the inner wall of the limiting groove 28 until it leaves the slot 26. At this time, the operator can pull out the insert plate 25 to clean the dustproof net 22, and then reset the insert plate 25. The operator then turns the handle 31 in the opposite direction, and the locking block 32 enters the slot 26. This completes the installation and improves the cleaning efficiency.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mobile ventilation and dust suppression device for highway tunnel construction, comprising a base (1), characterized in that: The base (1) has a storage slot (15) at one end, an extension plate (16) is slidably installed inside the storage slot (15), a counterweight (20) is fixedly installed on the outer wall of the extension plate (16), a threaded groove (17) is opened at one end of the extension plate (16), a first threaded rod (18) is threadedly connected inside the threaded groove (17), a control slot (12) is opened inside the base (1), one end of the first threaded rod (18) enters the control slot (12) and a worm gear (19) is fixedly installed, a worm (13) is rotatably installed on the inner side wall of the control slot (12), the worm (13) meshes with the worm gear (19), one end of the worm (13) passes through the base (1) and a turntable (14) is fixedly installed.

2. The mobile ventilation and dust suppression device for highway tunnel construction according to claim 1, characterized in that: A support seat (4) is fixedly installed on the top of the base (1), a ventilation cylinder (6) is fixedly installed on the inner wall of the support seat (4), and a fan (21) is fixedly installed on the inner wall of the ventilation cylinder (6).

3. A mobile ventilation and dust suppression device for highway tunnel construction according to claim 2, characterized in that: Two mounting plates (23) are symmetrically installed on the top of the ventilation duct (6). The outer wall of the mounting plate (23) is provided with a slot (27). The inner wall of the slot (27) is provided with a limiting groove (28). The inner wall of the limiting groove (28) is provided with a threaded hole (29). The threaded hole (29) is threadedly connected to a second threaded rod (30). The top of the second threaded rod (30) is fixedly installed with a handle (31). The bottom of the second threaded rod (30) is movably connected with a locking block (32).

4. A mobile ventilation and dust suppression device for highway tunnel construction according to claim 3, characterized in that: The slot (27) has a sliding plate (25) inside, and the bottom of the slot (25) has a slot (26). The outer wall of the slot (25) has a connecting plate (24) fixedly installed, and the bottom of the connecting plate (24) has a dustproof net (22) fixedly installed.

5. A mobile ventilation and dust suppression device for highway tunnel construction according to claim 2, characterized in that: A fixed pipe (10) is fixedly installed at the bottom of the ventilation duct (6), a water tank (7) is fixedly installed at the top of the base (1), a water pump (8) is fixedly installed at the top of the water tank (7), a connecting pipe (9) is fixedly connected between the output end of the water pump (8) and the fixed pipe (10), and a plurality of evenly distributed atomizing nozzles (11) are fixedly connected at the bottom of the fixed pipe (10).

6. A mobile ventilation and dust suppression device for highway tunnel construction according to claim 2, characterized in that: The outer wall of the support base (4) is provided with a controller (5).

7. A mobile ventilation and dust suppression device for highway tunnel construction according to claim 1, characterized in that: The base (1) is provided with rollers (2) at the four corners of the bottom, and a handrail (3) is fixedly installed on the top of the base (1).

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